/*
 * 
 * Copyright 2007-2012 Audrius Valunas
 * 
 * This file is part of LibreACS.

 * LibreACS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * LibreACS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with LibreACS.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package org.openacs;

import java.util.HashMap;

public class TransferItemMgr {

    private static final int CLEANUP_THREASHOLD = 1000;
    private static HashMap<String, TransferItem> items = new HashMap<String, TransferItem>();

    public static TransferItem getNew(int id, int type) {
        TransferItem it = new TransferItem(id, type);
        items.put(it.getUser(), it);
        return it;
    }

    public static TransferItem find(String user) {
        TransferItem it = items.get(user);
        if (it != null) {
            items.remove(user);
        }
        if (items.size() > CLEANUP_THREASHOLD) {
            for (TransferItem i : items.values()) {
                if (i.isExpired()) {
                    items.remove(i.getUser());
                }
            }
        }
        return it;
    }
}
